Adapted platform and latency tests to support a 64 channels configuration.

This configuration was succesfully tested on a Mini PC with Intel Celeron N4000.

README.md

@@ -138,9 +138,7 @@ See [Armbian NanoPi NEO2 ](https://www.armbian.com/nanopi-neo-2/) for additional
 The [ubuntu-packages.sh](ubuntu-packages.sh) script can be used to install all the packages required to compile and run the AES67 daemon, and the [platform compatibility test](#test).
 
 **_Important_** CPU scaling events could affect daemon streams causing unexpected distortions, see [CPU scaling events and scripts notes](#notes).
-
 **_Important_** Starting from Linux kernel 5.10.x onwards a change in a kernel parameter is required to fix a problem with round robin scheduler causing the latency test to fail, see [Real Time Scheduler Throttling](#notes).
-
 **_Important_** _PulseAudio_ must be disabled or uninstalled for the daemon to work properly, see [PulseAudio and scripts notes](#notes).
 
 ## How to build ##
@@ -164,7 +162,7 @@ The script allows a user to test a specific configuration and it can be used to
       Usage run_test.sh sample_format sample_rate channels duration
            sample_format can be one of S16_LE, S24_3LE, S32_LE
            sample_rate can be one of 44100, 48000, 96000
-           channels can be one of 1, 2, 4
+           channels can be one of 2, 4, 6, up to 64
            duration is in the range 1 to 10 minutes
 
 For example to test the typical AES67 configuration run:
@@ -192,6 +190,10 @@ The test performs the following operations:
 
 If the test result is OK it means that the selected configuration can run smoothly on your platform.
 
+A 64 channels configuration was succesfully tested on the following platforms:
+
+* Mini PC with Intel Celeron N4000
+
 If the test reports a failure you may try to stop all the possible additional loads running on the host and repeat it.
 If after this the test fails systematically it means you cannot achieve a good reliability with the specified configuration.
 In this case you may try to configure a different driver timer basic tick period in the daemon configuration file (parameter *tic\_frame\_size\_at\_1fs* in *test/daemon.conf*).
@@ -218,7 +220,7 @@ The script allows a user to test the latency on a specific configuration and it
       Usage run_latency_test.sh sample_format sample_rate channels duration frames
            sample_format can be one of S16_LE, S24_3LE, S32_LE
            sample_rate can be one of 44100, 48000, 96000
-           channels can be one of 1, 2, 4
+           channels can be one of 2, 4, 6, up to 64
            duration of the test in seconds
            frames buffer size in frames
 
@@ -257,6 +259,10 @@ If no underrun errors occurred during the test the requested buffer size can be
 
 The previous test was run on a _NanoPi NEO2 board_ with Ubuntu distro.
 
+A 64 channels was succesfully tested on the following platforms:
+
+* Mini PC with Intel Celeron N4000
+
 In case underrun happened the status reported is:
 
          state       : XRUN

cleanup.sh

@@ -18,6 +18,11 @@ rm -f daemon/tests/cmake_install.cmake
 rm -f daemon/tests/CTestTestfile.cmake
 rm -f daemon/tests/Testing
 rm -f daemon/tests/daemon-test
+rm -f test/*.o
+rm -f test/latency
+rm -f test/createtest
+rm -f test/check
+rm -f test/*.raw
 
 rm -f demo/sink-test.wav
 

run_latency_test.sh

@@ -16,7 +16,7 @@ function usage {
   echo 'Usage run_latenvy_test.sh sample_format sample_rate channels duration frames' >&2
   echo '  sample_format can be one of S16_LE, S24_3LE, S32_LE' >&2
   echo '  sample_rate can be one of 44100, 48000, 96000' >&2
-  echo '  channels can be one of 1, 2, 4' >&2
+  echo '  channels can be one of 2, 4, 6, up to 64' >&2
   echo '  duration in seconds' >&2
   echo '  frames buffer size in frames' >&2
   exit 1
@@ -89,19 +89,67 @@ else
   usage
 fi
 
-MAP="[ "
+
-for (( ch=0; ch<$CHANNELS; ch++ ))
+SOURCE=$(cat <<-END
+{
+    "id": ID,
+    "enabled": true,
+    "name": "ALSA Source ID",
+    "io": "Audio Device",
+    "max_samples_per_packet": 48,
+    "codec": "CODEC",
+    "address": "",
+    "ttl": 15,
+    "payload_type": 98,
+    "dscp": 34,
+    "refclk_ptp_traceable": false,
+    "map": [ MS, ME ]
+}
+END
+)
+
+SOURCES='{ "sources": [ '
+for (( ch=0; ch<$(( $CHANNELS / 2 )); ch++ ))
 do
-   MAP+=$ch
+   CSOURCE=$(echo $SOURCE | sed "s/ID/$ch/g;s/CODEC/$CODEC/g;s/MS/$(( 2*$ch ))/g;s/ME/$(( 2*$ch + 1 ))/g;")
-   if (( ch != ($CHANNELS - 1) )); then
+   SOURCES+=$CSOURCE
-     MAP+=","
+   if (( ch != ($(( $CHANNELS / 2 )) - 1) )); then
+     SOURCES+=","
    fi
 done
-MAP+=" ]"
+SOURCES+=" ],"
+
+SINK=$(cat <<-END
+  {
+    "id": ID,
+    "name": "ALSA Sink ID",
+    "io": "Audio Device",
+    "use_sdp": true,
+    "source": "http://127.0.0.1:8080/api/source/sdp/0",
+    "sdp": "v=0\no=- 657152 657153 IN IP4 127.0.0.1\ns=ALSA Source ID\nc=IN IP4 239.1.0.ADDR/15\nt=0 0\na=clock-domain:PTPv2 0\nm=audio 5004 RTP/AVP 98\nc=IN IP4 239.1.0.ADDR/15\na=rtpmap:98 CODEC/SR/2\na=sync-time:0\na=framecount:48\na=ptime:PTIME\na=mediaclk:direct=0\na=ts-refclk:ptp=IEEE1588-2008:00-00-00-00-00-00-00-00:0\na=recvonly\n",
+    "delay": 576,
+    "ignore_refclk_gmid": true,
+    "map": [ MS, ME ]
+  }
+END
+)
+
+SINKS='"sinks": [ '
+for (( ch=0; ch<$(( $CHANNELS / 2 )); ch++ ))
+do
+   CSINK=$(echo $SINK | sed "s/ID/$ch/g;s/ADDR/$(( $ch+1 ))/g;s/CODEC/$CODEC/g;s/SR/$SAMPLE_RATE/g;s/PTIME/$PTIME/g;s/MS/$(( 2*$ch ))/g;s/ME/$(( 2*$ch + 1 ))/g;")
+   SINKS+=$CSINK
+   if (( ch != ($(( $CHANNELS / 2 )) - 1) )); then
+     SINKS+=","
+   fi
+done
+SINKS+=" ] }"
 
 echo 'Creating configuration files ..' >&2
 sed 's/48000/'"$SAMPLE_RATE"'/g;s/status.json/status_.json/g;' test/daemon.conf > test/daemon_.conf
-sed 's/\/2/\/'"$CHANNELS"'/g;s/48000/'"$SAMPLE_RATE"'/g;s/L24/'"$CODEC"'/g;s/ptime:1/ptime:'"$PTIME"'/;s/\[ 0, 1 \]/'"$MAP"'/g' test/status.json > test/status_.json
+#sed 's/48000/'"$SAMPLE_RATE"'/g;s/L24/'"$CODEC"'/g;s/ptime:1/ptime:'"$PTIME"'/g;' test/status.json > test/status_.json
+echo $SOURCES > test/status_.json
+echo $SINKS >> test/status_.json
 
 trap cleanup EXIT
 

run_test.sh

@@ -46,7 +46,7 @@ if ! ./createtest $1 $2 $3 $4 ; then
   echo 'Usage run_test.sh sample_format sample_rate channels duration' >&2
   echo '  sample_format can be one of S16_LE, S24_3LE, S32_LE' >&2
   echo '  sample_rate can be one of 44100, 48000, 96000' >&2
-  echo '  channels can be one of 1, 2, 4' >&2
+  echo '  channels can be one of 2, 4, 6, up to 64' >&2
   echo '  duration is in the range 1 to 10 minutes' >&2
   exit 1
 else
@@ -76,19 +76,66 @@ elif  [ $SAMPLE_RATE == "96000" ]; then
   PTIME="0.5"
 fi
 
-MAP="[ "
+SOURCE=$(cat <<-END
-for (( ch=0; ch<$CHANNELS; ch++ ))
+{
+    "id": ID,
+    "enabled": true,
+    "name": "ALSA Source ID",
+    "io": "Audio Device",
+    "max_samples_per_packet": 48,
+    "codec": "CODEC",
+    "address": "",
+    "ttl": 15,
+    "payload_type": 98,
+    "dscp": 34,
+    "refclk_ptp_traceable": false,
+    "map": [ MS, ME ]
+}
+END
+)
+
+SOURCES='{ "sources": [ '
+for (( ch=0; ch<$(( $CHANNELS / 2 )); ch++ ))
 do
-   MAP+=$ch
+   CSOURCE=$(echo $SOURCE | sed "s/ID/$ch/g;s/CODEC/$CODEC/g;s/MS/$(( 2*$ch ))/g;s/ME/$(( 2*$ch + 1 ))/g;")
-   if (( ch != ($CHANNELS - 1) )); then
+   SOURCES+=$CSOURCE
-     MAP+=","
+   if (( ch != ($(( $CHANNELS / 2 )) - 1) )); then
+     SOURCES+=","
    fi
 done
-MAP+=" ]"
+SOURCES+=" ],"
+
+SINK=$(cat <<-END
+  {
+    "id": ID,
+    "name": "ALSA Sink ID",
+    "io": "Audio Device",
+    "use_sdp": true,
+    "source": "http://127.0.0.1:8080/api/source/sdp/0",
+    "sdp": "v=0\no=- 657152 657153 IN IP4 127.0.0.1\ns=ALSA Source ID\nc=IN IP4 239.1.0.ADDR/15\nt=0 0\na=clock-domain:PTPv2 0\nm=audio 5004 RTP/AVP 98\nc=IN IP4 239.1.0.ADDR/15\na=rtpmap:98 CODEC/SR/2\na=sync-time:0\na=framecount:48\na=ptime:PTIME\na=mediaclk:direct=0\na=ts-refclk:ptp=IEEE1588-2008:00-00-00-00-00-00-00-00:0\na=recvonly\n",
+    "delay": 576,
+    "ignore_refclk_gmid": true,
+    "map": [ MS, ME ]
+  }
+END
+)
+
+SINKS='"sinks": [ '
+for (( ch=0; ch<$(( $CHANNELS / 2 )); ch++ ))
+do
+   CSINK=$(echo $SINK | sed "s/ID/$ch/g;s/ADDR/$(( $ch+1 ))/g;s/CODEC/$CODEC/g;s/SR/$SAMPLE_RATE/g;s/PTIME/$PTIME/g;s/MS/$(( 2*$ch ))/g;s/ME/$(( 2*$ch + 1 ))/g;")
+   SINKS+=$CSINK
+   if (( ch != ($(( $CHANNELS / 2 )) - 1) )); then
+     SINKS+=","
+   fi
+done
+SINKS+=" ] }"
 
 echo 'Creating configuration files ..' >&2
 sed 's/48000/'"$SAMPLE_RATE"'/g;s/status.json/status_.json/g;' test/daemon.conf > test/daemon_.conf
-sed 's/\/2/\/'"$CHANNELS"'/g;s/48000/'"$SAMPLE_RATE"'/g;s/L24/'"$CODEC"'/g;s/ptime:1/ptime:'"$PTIME"'/;s/\[ 0, 1 \]/'"$MAP"'/g' test/status.json > test/status_.json
+#sed 's/48000/'"$SAMPLE_RATE"'/g;s/L24/'"$CODEC"'/g;s/ptime:1/ptime:'"$PTIME"'/g;' test/status.json > test/status_.json
+echo $SOURCES > test/status_.json
+echo $SINKS >> test/status_.json
 
 trap cleanup EXIT
 

test/check.cc

@@ -25,7 +25,7 @@ int main(int argc, char* argv[])
   }
 
   int channels = atoi(argv[2]);
-  if (channels != 1 && channels != 2 && channels != 4 && channels != 8) {
+  if (channels % 2 != 0 || channels <= 0 || channels > 64) {
     cerr << "Unsupported channels " << channels << endl;
     exit(1);
   }

test/createtest.cc

@@ -31,7 +31,7 @@ int main(int argc, char* argv[])
   }
 
   int channels = atoi(argv[3]);
-  if (channels != 1 && channels != 2 && channels != 4 && channels != 8) {
+  if (channels % 2 != 0 || channels <= 0 || channels > 64) {
     cerr << "Unsupported channels " << channels << endl;
     exit(1);
   }

test/latency.cc

@@ -624,7 +624,7 @@ int main(int argc, char *argv[])
 
   loop_limit = loop_sec * rate;
   latency = latency_min - 4;
-  buffer = (char*)malloc((latency_max * snd_pcm_format_width(format) / 8) * 2);
+  buffer = (char*)malloc((latency_max * 2 * snd_pcm_format_width(format) / 8) * channels);
 
   setscheduler();
 

test/status.json

@@ -1,29 +0,0 @@
-{
-  "sources": [
-  {
-    "id": 0,
-    "enabled": true,
-    "name": "ALSA Source 0",
-    "io": "Audio Device",
-    "max_samples_per_packet": 48,
-    "codec": "L24",
-    "address": "",
-    "ttl": 15,
-    "payload_type": 98,
-    "dscp": 34,
-    "refclk_ptp_traceable": false,
-    "map": [ 0, 1 ]
-  }  ],
-  "sinks": [
-  {
-    "id": 0,
-    "name": "ALSA Sink 0",
-    "io": "Audio Device",
-    "use_sdp": true,
-    "source": "http://127.0.0.1:8080/api/source/sdp/0",
-    "sdp": "v=0\no=- 657664 657666 IN IP4 127.0.0.1\ns=AES67 daemon 000a0900 ALSA Source 0\nc=IN IP4 239.1.0.1/15\nt=0 0\na=clock-domain:PTPv2 0\nm=audio 5004 RTP/AVP 98\nc=IN IP4 239.1.0.1/15\na=rtpmap:98 L24/48000/2\na=sync-time:0\na=framecount:48\na=ptime:1\na=mediaclk:direct=0\na=ts-refclk:ptp=IEEE1588-2008:00-1D-C1-FF-FE-50-36-33:0\na=recvonly\n",
-    "delay": 960,
-    "ignore_refclk_gmid": true,
-    "map": [ 0, 1 ]
-  }  ]
-}